The 4L60E and 4L80E are two of General Motors’ most discussed automatic transmissions, and the choice between them shapes how a truck, SUV, or LS swap behaves on the street and under heavy load. Both ...

Approaching four decades ago, automakers were scrambling for solutions to fuel economy woes, and GM was no exception. Computer-controlled carburetors and the birth of electronic throttle body fuel ...

Engines get all the glory, but without a stout transmission backing it up even the most exotic mill is nothing more than a noisemaker. And as engines keep putting out more and more power, the ...

There was a time in the not so distant past that if you said "it's an automatic" the competition began to salivate at picking on the wimpy kid in the schoolyard. Those days are long behind us as ...

Poor reliability is a car problem that isn't as prevalent as it used to be. Automatic transmissions were among the worst offenders, with some going from smoothly shifting between gears while ...

With their debut in the 1990s, GM's 4L60E and 4L80E transmissions reveal some of their differences –- and similarities –- right in their names. The "4" and "L" respectively refer to the number of ...

Add Yahoo as a preferred source to see more of our stories on Google. The most significant difference between General Motors' 4L60E and 4L65E four-speed automatic transmissions is their ability to ...

Add Yahoo as a preferred source to see more of our stories on Google. Poor reliability is a car problem that isn't as prevalent as it used to be. Automatic transmissions were among the worst offenders ...